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<div id="overview"><a href="../../../../../../apidocs/com/googlecode/ehcache/annotations/key/MessageDigestCacheKeyGenerator.html">View Javadoc</a></div><pre>

<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_javadoccomment"> * Copyright 2010-2011 Nicholas Blair, Eric Dalquist</em>
<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_javadoccomment"> * Licensed under the Apache License, Version 2.0 (the "License");</em>
<a class="jxr_linenumber" name="5" href="#5">5</a>   <em class="jxr_javadoccomment"> * you may not use this file except in compliance with the License.</em>
<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_javadoccomment"> * You may obtain a copy of the License at</em>
<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_javadoccomment"> *   <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_javadoccomment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="11" href="#11">11</a>  <em class="jxr_javadoccomment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a class="jxr_linenumber" name="12" href="#12">12</a>  <em class="jxr_javadoccomment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a class="jxr_linenumber" name="13" href="#13">13</a>  <em class="jxr_javadoccomment"> * See the License for the specific language governing permissions and</em>
<a class="jxr_linenumber" name="14" href="#14">14</a>  <em class="jxr_javadoccomment"> * limitations under the License.</em>
<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="16" href="#16">16</a>  <strong class="jxr_keyword">package</strong> com.googlecode.ehcache.annotations.key;
<a class="jxr_linenumber" name="17" href="#17">17</a>  
<a class="jxr_linenumber" name="18" href="#18">18</a>  <strong class="jxr_keyword">import</strong> java.security.MessageDigest;
<a class="jxr_linenumber" name="19" href="#19">19</a>  <strong class="jxr_keyword">import</strong> java.security.NoSuchAlgorithmException;
<a class="jxr_linenumber" name="20" href="#20">20</a>  
<a class="jxr_linenumber" name="21" href="#21">21</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.codec.binary.Base64;
<a class="jxr_linenumber" name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> org.slf4j.Logger;
<a class="jxr_linenumber" name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> org.slf4j.LoggerFactory;
<a class="jxr_linenumber" name="24" href="#24">24</a>  
<a class="jxr_linenumber" name="25" href="#25">25</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="26" href="#26">26</a>  <em class="jxr_javadoccomment"> * @author Eric Dalquist</em>
<a class="jxr_linenumber" name="27" href="#27">27</a>  <em class="jxr_javadoccomment"> * @version $Revision: 692 $</em>
<a class="jxr_linenumber" name="28" href="#28">28</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="29" href="#29">29</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestCacheKeyGenerator.html">MessageDigestCacheKeyGenerator</a> <strong class="jxr_keyword">extends</strong> AbstractHashingCacheKeyGenerator&lt;MessageDigestOutputStream, String&gt; {
<a class="jxr_linenumber" name="30" href="#30">30</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="31" href="#31">31</a>  <em class="jxr_javadoccomment">     * Name of the bean this generator is registered under using the default constructor.</em>
<a class="jxr_linenumber" name="32" href="#32">32</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="33" href="#33">33</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String DEFAULT_BEAN_NAME = <span class="jxr_string">"com.googlecode.ehcache.annotations.key.MessageDigestCacheKeyGenerator.DEFAULT_BEAN_NAME"</span>;
<a class="jxr_linenumber" name="34" href="#34">34</a>      
<a class="jxr_linenumber" name="35" href="#35">35</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String DEFAULT_ALGORITHM = <span class="jxr_string">"SHA-1"</span>;
<a class="jxr_linenumber" name="36" href="#36">36</a>      <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> DEFAULT_BYTE_BUFFER_SIZE = 64;
<a class="jxr_linenumber" name="37" href="#37">37</a>      
<a class="jxr_linenumber" name="38" href="#38">38</a>      <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">final</strong> Logger logger = LoggerFactory.getLogger(<strong class="jxr_keyword">this</strong>.getClass());
<a class="jxr_linenumber" name="39" href="#39">39</a>      
<a class="jxr_linenumber" name="40" href="#40">40</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> MessageDigest baseMessageDigest;
<a class="jxr_linenumber" name="41" href="#41">41</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> cloneNotSupported;
<a class="jxr_linenumber" name="42" href="#42">42</a>      
<a class="jxr_linenumber" name="43" href="#43">43</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="44" href="#44">44</a>  <em class="jxr_javadoccomment">     * Uses {@link #DEFAULT_ALGORITHM} for the algorithm</em>
<a class="jxr_linenumber" name="45" href="#45">45</a>  <em class="jxr_javadoccomment">     * @see AbstractCacheKeyGenerator#AbstractCacheKeyGenerator() </em>
<a class="jxr_linenumber" name="46" href="#46">46</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="47" href="#47">47</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestCacheKeyGenerator.html">MessageDigestCacheKeyGenerator</a>() <strong class="jxr_keyword">throws</strong> NoSuchAlgorithmException {
<a class="jxr_linenumber" name="48" href="#48">48</a>          <strong class="jxr_keyword">this</strong>(DEFAULT_ALGORITHM);
<a class="jxr_linenumber" name="49" href="#49">49</a>      }
<a class="jxr_linenumber" name="50" href="#50">50</a>      
<a class="jxr_linenumber" name="51" href="#51">51</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="52" href="#52">52</a>  <em class="jxr_javadoccomment">     * @see AbstractCacheKeyGenerator#AbstractCacheKeyGenerator() </em>
<a class="jxr_linenumber" name="53" href="#53">53</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="54" href="#54">54</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestCacheKeyGenerator.html">MessageDigestCacheKeyGenerator</a>(String algorithm) <strong class="jxr_keyword">throws</strong> NoSuchAlgorithmException {
<a class="jxr_linenumber" name="55" href="#55">55</a>          <strong class="jxr_keyword">this</strong>.baseMessageDigest = MessageDigest.getInstance(algorithm);
<a class="jxr_linenumber" name="56" href="#56">56</a>      }
<a class="jxr_linenumber" name="57" href="#57">57</a>      
<a class="jxr_linenumber" name="58" href="#58">58</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="59" href="#59">59</a>  <em class="jxr_javadoccomment">     * Uses {@link #DEFAULT_ALGORITHM} for the algorithm</em>
<a class="jxr_linenumber" name="60" href="#60">60</a>  <em class="jxr_javadoccomment">     * @see AbstractCacheKeyGenerator#AbstractCacheKeyGenerator(boolean, boolean) </em>
<a class="jxr_linenumber" name="61" href="#61">61</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="62" href="#62">62</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestCacheKeyGenerator.html">MessageDigestCacheKeyGenerator</a>(<strong class="jxr_keyword">boolean</strong> includeMethod, <strong class="jxr_keyword">boolean</strong> includeParameterTypes) <strong class="jxr_keyword">throws</strong> NoSuchAlgorithmException {
<a class="jxr_linenumber" name="63" href="#63">63</a>          <strong class="jxr_keyword">this</strong>(DEFAULT_ALGORITHM, includeMethod, includeParameterTypes);
<a class="jxr_linenumber" name="64" href="#64">64</a>      }
<a class="jxr_linenumber" name="65" href="#65">65</a>      
<a class="jxr_linenumber" name="66" href="#66">66</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="67" href="#67">67</a>  <em class="jxr_javadoccomment">     * @see AbstractCacheKeyGenerator#AbstractCacheKeyGenerator(boolean, boolean) </em>
<a class="jxr_linenumber" name="68" href="#68">68</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="69" href="#69">69</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestCacheKeyGenerator.html">MessageDigestCacheKeyGenerator</a>(String algorithm, <strong class="jxr_keyword">boolean</strong> includeMethod, <strong class="jxr_keyword">boolean</strong> includeParameterTypes) <strong class="jxr_keyword">throws</strong> NoSuchAlgorithmException {
<a class="jxr_linenumber" name="70" href="#70">70</a>          <strong class="jxr_keyword">super</strong>(includeMethod, includeParameterTypes);
<a class="jxr_linenumber" name="71" href="#71">71</a>          <strong class="jxr_keyword">this</strong>.baseMessageDigest = MessageDigest.getInstance(algorithm);
<a class="jxr_linenumber" name="72" href="#72">72</a>      }
<a class="jxr_linenumber" name="73" href="#73">73</a>      
<a class="jxr_linenumber" name="74" href="#74">74</a>  
<a class="jxr_linenumber" name="75" href="#75">75</a>  
<a class="jxr_linenumber" name="76" href="#76">76</a>      @Override
<a class="jxr_linenumber" name="77" href="#77">77</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestOutputStream.html">MessageDigestOutputStream</a> getGenerator(Object... data) {
<a class="jxr_linenumber" name="78" href="#78">78</a>          <strong class="jxr_keyword">final</strong> MessageDigest messageDigest = <strong class="jxr_keyword">this</strong>.getMessageDigest();
<a class="jxr_linenumber" name="79" href="#79">79</a>          <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestOutputStream.html">MessageDigestOutputStream</a>(messageDigest);
<a class="jxr_linenumber" name="80" href="#80">80</a>      }
<a class="jxr_linenumber" name="81" href="#81">81</a>  
<a class="jxr_linenumber" name="82" href="#82">82</a>      @Override
<a class="jxr_linenumber" name="83" href="#83">83</a>      <strong class="jxr_keyword">public</strong> String generateKey(<a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestOutputStream.html">MessageDigestOutputStream</a> generator) {
<a class="jxr_linenumber" name="84" href="#84">84</a>          <strong class="jxr_keyword">final</strong> MessageDigest messageDigest = generator.getMessageDigest();
<a class="jxr_linenumber" name="85" href="#85">85</a>          <strong class="jxr_keyword">final</strong> byte[] digest = messageDigest.digest();
<a class="jxr_linenumber" name="86" href="#86">86</a>          <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.encodeHash(digest);
<a class="jxr_linenumber" name="87" href="#87">87</a>      }
<a class="jxr_linenumber" name="88" href="#88">88</a>  
<a class="jxr_linenumber" name="89" href="#89">89</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="90" href="#90">90</a>  <em class="jxr_javadoccomment">     * Encode the digested hash bytes as a String</em>
<a class="jxr_linenumber" name="91" href="#91">91</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="92" href="#92">92</a>      <strong class="jxr_keyword">protected</strong> String encodeHash(<strong class="jxr_keyword">final</strong> byte[] digest) {
<a class="jxr_linenumber" name="93" href="#93">93</a>          <strong class="jxr_keyword">return</strong> Base64.encodeBase64URLSafeString(digest);
<a class="jxr_linenumber" name="94" href="#94">94</a>      }
<a class="jxr_linenumber" name="95" href="#95">95</a>  
<a class="jxr_linenumber" name="96" href="#96">96</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="97" href="#97">97</a>  <em class="jxr_javadoccomment">     * Tries to clone the {@link MessageDigest} that was created during construction. If the clone fails</em>
<a class="jxr_linenumber" name="98" href="#98">98</a>  <em class="jxr_javadoccomment">     * that is remembered and from that point on new {@link MessageDigest} instances will be created on</em>
<a class="jxr_linenumber" name="99" href="#99">99</a>  <em class="jxr_javadoccomment">     * every call.</em>
<a class="jxr_linenumber" name="100" href="#100">100</a> <em class="jxr_javadoccomment">     * </em>
<a class="jxr_linenumber" name="101" href="#101">101</a> <em class="jxr_javadoccomment">     * @return Generates a {@link MessageDigest} to use during a call to {@link #generateKey(Object...)}</em>
<a class="jxr_linenumber" name="102" href="#102">102</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="103" href="#103">103</a>     <strong class="jxr_keyword">protected</strong> MessageDigest getMessageDigest() {
<a class="jxr_linenumber" name="104" href="#104">104</a>         <strong class="jxr_keyword">if</strong> (<strong class="jxr_keyword">this</strong>.cloneNotSupported) {
<a class="jxr_linenumber" name="105" href="#105">105</a>             <strong class="jxr_keyword">final</strong> String algorithm = <strong class="jxr_keyword">this</strong>.baseMessageDigest.getAlgorithm();
<a class="jxr_linenumber" name="106" href="#106">106</a>             <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="107" href="#107">107</a>                 <strong class="jxr_keyword">return</strong> MessageDigest.getInstance(algorithm);
<a class="jxr_linenumber" name="108" href="#108">108</a>             }
<a class="jxr_linenumber" name="109" href="#109">109</a>             <strong class="jxr_keyword">catch</strong> (NoSuchAlgorithmException e) {
<a class="jxr_linenumber" name="110" href="#110">110</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalStateException(<span class="jxr_string">"MessageDigest algorithm '"</span> + algorithm + <span class="jxr_string">"' was supported when "</span> + <strong class="jxr_keyword">this</strong>.getClass().getSimpleName() + <span class="jxr_string">" was created but is not now. This should not be possible."</span>, e);
<a class="jxr_linenumber" name="111" href="#111">111</a>             }
<a class="jxr_linenumber" name="112" href="#112">112</a>         }
<a class="jxr_linenumber" name="113" href="#113">113</a>         
<a class="jxr_linenumber" name="114" href="#114">114</a>         <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="115" href="#115">115</a>             <strong class="jxr_keyword">return</strong> (MessageDigest)<strong class="jxr_keyword">this</strong>.baseMessageDigest.clone();
<a class="jxr_linenumber" name="116" href="#116">116</a>         }
<a class="jxr_linenumber" name="117" href="#117">117</a>         <strong class="jxr_keyword">catch</strong> (CloneNotSupportedException e) {
<a class="jxr_linenumber" name="118" href="#118">118</a>             <strong class="jxr_keyword">this</strong>.cloneNotSupported = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="119" href="#119">119</a>             <strong class="jxr_keyword">this</strong>.logger.warn(<span class="jxr_string">"Could not clone MessageDigest using algorithm '"</span> + <strong class="jxr_keyword">this</strong>.baseMessageDigest.getAlgorithm() + <span class="jxr_string">"'. MessageDigest.getInstance will be used from now on which will be much more expensive."</span>, e);
<a class="jxr_linenumber" name="120" href="#120">120</a>             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.getMessageDigest();
<a class="jxr_linenumber" name="121" href="#121">121</a>         }
<a class="jxr_linenumber" name="122" href="#122">122</a>     }
<a class="jxr_linenumber" name="123" href="#123">123</a>     
<a class="jxr_linenumber" name="124" href="#124">124</a> 
<a class="jxr_linenumber" name="125" href="#125">125</a>     @Override
<a class="jxr_linenumber" name="126" href="#126">126</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> append(<a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestOutputStream.html">MessageDigestOutputStream</a> generator, <strong class="jxr_keyword">boolean</strong>[] a) {
<a class="jxr_linenumber" name="127" href="#127">127</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">boolean</strong> element : a) {
<a class="jxr_linenumber" name="128" href="#128">128</a>             generator.writeBoolean(element);
<a class="jxr_linenumber" name="129" href="#129">129</a>         }
<a class="jxr_linenumber" name="130" href="#130">130</a>     }
<a class="jxr_linenumber" name="131" href="#131">131</a> 
<a class="jxr_linenumber" name="132" href="#132">132</a>     @Override
<a class="jxr_linenumber" name="133" href="#133">133</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> append(<a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestOutputStream.html">MessageDigestOutputStream</a> generator, byte[] a) {
<a class="jxr_linenumber" name="134" href="#134">134</a>         generator.write(a);
<a class="jxr_linenumber" name="135" href="#135">135</a>     }
<a class="jxr_linenumber" name="136" href="#136">136</a> 
<a class="jxr_linenumber" name="137" href="#137">137</a>     @Override
<a class="jxr_linenumber" name="138" href="#138">138</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> append(<a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestOutputStream.html">MessageDigestOutputStream</a> generator, <strong class="jxr_keyword">char</strong>[] a) {
<a class="jxr_linenumber" name="139" href="#139">139</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">char</strong> element : a) {
<a class="jxr_linenumber" name="140" href="#140">140</a>             generator.writeChar(element);
<a class="jxr_linenumber" name="141" href="#141">141</a>         }
<a class="jxr_linenumber" name="142" href="#142">142</a>     }
<a class="jxr_linenumber" name="143" href="#143">143</a> 
<a class="jxr_linenumber" name="144" href="#144">144</a>     @Override
<a class="jxr_linenumber" name="145" href="#145">145</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> append(<a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestOutputStream.html">MessageDigestOutputStream</a> generator, <strong class="jxr_keyword">double</strong>[] a) {
<a class="jxr_linenumber" name="146" href="#146">146</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">double</strong> element : a) {
<a class="jxr_linenumber" name="147" href="#147">147</a>             generator.writeDouble(element);
<a class="jxr_linenumber" name="148" href="#148">148</a>         }
<a class="jxr_linenumber" name="149" href="#149">149</a>     }
<a class="jxr_linenumber" name="150" href="#150">150</a> 
<a class="jxr_linenumber" name="151" href="#151">151</a>     @Override
<a class="jxr_linenumber" name="152" href="#152">152</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> append(<a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestOutputStream.html">MessageDigestOutputStream</a> generator, <strong class="jxr_keyword">float</strong>[] a) {
<a class="jxr_linenumber" name="153" href="#153">153</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">float</strong> element : a) {
<a class="jxr_linenumber" name="154" href="#154">154</a>             generator.writeFloat(element);
<a class="jxr_linenumber" name="155" href="#155">155</a>         }
<a class="jxr_linenumber" name="156" href="#156">156</a>     }
<a class="jxr_linenumber" name="157" href="#157">157</a> 
<a class="jxr_linenumber" name="158" href="#158">158</a>     @Override
<a class="jxr_linenumber" name="159" href="#159">159</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> append(<a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestOutputStream.html">MessageDigestOutputStream</a> generator, <strong class="jxr_keyword">int</strong>[] a) {
<a class="jxr_linenumber" name="160" href="#160">160</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> element : a) {
<a class="jxr_linenumber" name="161" href="#161">161</a>             generator.writeInt(element);
<a class="jxr_linenumber" name="162" href="#162">162</a>         }
<a class="jxr_linenumber" name="163" href="#163">163</a>     }
<a class="jxr_linenumber" name="164" href="#164">164</a> 
<a class="jxr_linenumber" name="165" href="#165">165</a>     @Override
<a class="jxr_linenumber" name="166" href="#166">166</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> append(<a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestOutputStream.html">MessageDigestOutputStream</a> generator, <strong class="jxr_keyword">long</strong>[] a) {
<a class="jxr_linenumber" name="167" href="#167">167</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">long</strong> element : a) {
<a class="jxr_linenumber" name="168" href="#168">168</a>             generator.writeLong(element);
<a class="jxr_linenumber" name="169" href="#169">169</a>         }
<a class="jxr_linenumber" name="170" href="#170">170</a>     }
<a class="jxr_linenumber" name="171" href="#171">171</a> 
<a class="jxr_linenumber" name="172" href="#172">172</a>     @Override
<a class="jxr_linenumber" name="173" href="#173">173</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> append(<a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestOutputStream.html">MessageDigestOutputStream</a> generator, <strong class="jxr_keyword">short</strong>[] a) {
<a class="jxr_linenumber" name="174" href="#174">174</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">short</strong> element : a) {
<a class="jxr_linenumber" name="175" href="#175">175</a>             generator.writeShort(element);
<a class="jxr_linenumber" name="176" href="#176">176</a>         }
<a class="jxr_linenumber" name="177" href="#177">177</a>     }
<a class="jxr_linenumber" name="178" href="#178">178</a> 
<a class="jxr_linenumber" name="179" href="#179">179</a>     @Override
<a class="jxr_linenumber" name="180" href="#180">180</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> appendGraphCycle(<a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestOutputStream.html">MessageDigestOutputStream</a> generator, Object o) {
<a class="jxr_linenumber" name="181" href="#181">181</a>         generator.write(0);        
<a class="jxr_linenumber" name="182" href="#182">182</a>     }
<a class="jxr_linenumber" name="183" href="#183">183</a> 
<a class="jxr_linenumber" name="184" href="#184">184</a>     @Override
<a class="jxr_linenumber" name="185" href="#185">185</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> appendNull(<a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestOutputStream.html">MessageDigestOutputStream</a> generator) {
<a class="jxr_linenumber" name="186" href="#186">186</a>         generator.write(0);
<a class="jxr_linenumber" name="187" href="#187">187</a>     }
<a class="jxr_linenumber" name="188" href="#188">188</a> 
<a class="jxr_linenumber" name="189" href="#189">189</a>     @Override
<a class="jxr_linenumber" name="190" href="#190">190</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> appendHash(<a href="../../../../../com/googlecode/ehcache/annotations/key/MessageDigestOutputStream.html">MessageDigestOutputStream</a> generator, Object e) {
<a class="jxr_linenumber" name="191" href="#191">191</a>         <strong class="jxr_keyword">if</strong> (e instanceof String) {
<a class="jxr_linenumber" name="192" href="#192">192</a>             generator.writeUTF((String)e);
<a class="jxr_linenumber" name="193" href="#193">193</a>         }
<a class="jxr_linenumber" name="194" href="#194">194</a>         <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (e instanceof Boolean) {
<a class="jxr_linenumber" name="195" href="#195">195</a>             generator.writeBoolean((Boolean)e);
<a class="jxr_linenumber" name="196" href="#196">196</a>         }
<a class="jxr_linenumber" name="197" href="#197">197</a>         <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (e instanceof Byte) {
<a class="jxr_linenumber" name="198" href="#198">198</a>             generator.writeByte((Byte)e);
<a class="jxr_linenumber" name="199" href="#199">199</a>         }
<a class="jxr_linenumber" name="200" href="#200">200</a>         <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (e instanceof Character) {
<a class="jxr_linenumber" name="201" href="#201">201</a>             generator.writeChar((Character)e);
<a class="jxr_linenumber" name="202" href="#202">202</a>         }
<a class="jxr_linenumber" name="203" href="#203">203</a>         <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (e instanceof Double) {
<a class="jxr_linenumber" name="204" href="#204">204</a>             generator.writeDouble((Double)e);
<a class="jxr_linenumber" name="205" href="#205">205</a>         }
<a class="jxr_linenumber" name="206" href="#206">206</a>         <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (e instanceof Float) {
<a class="jxr_linenumber" name="207" href="#207">207</a>             generator.writeFloat((Float)e);
<a class="jxr_linenumber" name="208" href="#208">208</a>         }
<a class="jxr_linenumber" name="209" href="#209">209</a>         <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (e instanceof Integer) {
<a class="jxr_linenumber" name="210" href="#210">210</a>             generator.writeInt((Integer)e);
<a class="jxr_linenumber" name="211" href="#211">211</a>         }
<a class="jxr_linenumber" name="212" href="#212">212</a>         <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (e instanceof Long) {
<a class="jxr_linenumber" name="213" href="#213">213</a>             generator.writeLong((Long)e);
<a class="jxr_linenumber" name="214" href="#214">214</a>         }
<a class="jxr_linenumber" name="215" href="#215">215</a>         <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (e instanceof Short) {
<a class="jxr_linenumber" name="216" href="#216">216</a>             generator.writeShort((Short)e);
<a class="jxr_linenumber" name="217" href="#217">217</a>         }
<a class="jxr_linenumber" name="218" href="#218">218</a>         <strong class="jxr_keyword">else</strong> {        
<a class="jxr_linenumber" name="219" href="#219">219</a>             generator.writeInt(e.hashCode());
<a class="jxr_linenumber" name="220" href="#220">220</a>         }
<a class="jxr_linenumber" name="221" href="#221">221</a>     }
<a class="jxr_linenumber" name="222" href="#222">222</a> }
</pre>
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